NDLI: Biological, Functional and Genetic Characterization of Bone Marrow-Derived Mesenchymal Stromal Cells from Pediatric Patients Affected by Acute Lymphoblastic Leukemia

Content Provider	PubMed Central
Author	Conforti, Antonella Biagini, Simone Del, Bufalo Francesca Sirleto, Pietro Angioni, Adriano Starc, Nadia Pira, Giuseppina Li Moretta, Francesca Proia, Alessandra Contoli, Benedetta Genovese, Silvia Ciardi, Claudia Avanzini, Maria Antonietta Rosti, Vittorio Francesco, Lo-coco Locatelli, Franco Bernardo, Maria Ester
Editor	Menendez, Pablo
Copyright Year	2013
Abstract	Alterations in hematopoietic microenvironment of acute lymphoblastic leukemia patients have been claimed to occur, but little is known about the components of marrow stroma in these patients. In this study, we characterized mesenchymal stromal cells (MSCs) isolated from bone marrow (BM) of 45 pediatric patients with acute lymphoblastic leukemia (ALL-MSCs) at diagnosis (day+0) and during chemotherapy treatment (days: +15; +33; +78), the time points being chosen according to the schedule of BM aspirates required by the AIEOP-BFM ALL 2009 treatment protocol. Morphology, proliferative capacity, immunophenotype, differentiation potential, immunomodulatory properties and ability to support long-term hematopoiesis of ALL-MSCs were analysed and compared with those from 41 healthy donors (HD-MSCs). ALL-MSCs were also genetically characterized through array-CGH, conventional karyotyping and FISH analysis. Moreover, we compared ALL-MSCs generated at day+0 with those isolated during chemotherapy. Morphology, immunophenotype, differentiation potential and in vitro life-span did not differ between ALL-MSCs and HD-MSCs. ALL-MSCs showed significantly lower proliferative capacity (p<0.001) and ability to support in vitro hematopoiesis (p = 0.04) as compared with HD-MSCs, while they had similar capacity to inhibit in vitro mitogen-induced T-cell proliferation (p = N.S.). ALL-MSCs showed neither the typical translocations carried by the leukemic clone (when present), nor other genetic abnormalities acquired during ex vivo culture. Our findings indicate that ALL-MSCs display reduced ability to proliferate and to support long-term hematopoiesis in vitro. ALL-MSCs isolated at diagnosis do not differ from those obtained during treatment.
Related Links	http://dx.doi.org/10.1371/journal.pone.0076989
Starting Page	76989
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	11
Volume Number	8
Language	English
Publisher	Public Library of Science
Publisher Date	2013-11-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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